ΔE 14.5, fair: the same colour family, but not a straight swap. Base Flesh is a little darker, warmer than Sun-bleached Bone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Base Flesh is a little darker, warmer than Sun-bleached Bone.
The same difference applies the other way round: Sun-bleached Bone is a little lighter, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Sun-bleached Bone on the colour wheel See Base Flesh on the colour wheel
All matches: Sun-bleached Bone equivalents · Base Flesh equivalents